DSL for writing communication benchmarks
Live DVD with CORE network simulator
Middleware for distributed applications
Open Source SIEM
Energy and environmental monitoring of the server room
Scalable, distributed monitoring system for high-performance computing
Network link bonding/trunking/aggregation and multichannel VPN daemon
Two-factor authentication system
Collects data about network useage using libpcap.
Hierarchical Cluster Engine project
NetStress is a DDoS and network stress testing tool.
ss7mon an SS7/SIGTRAN signalling monitor
The network calculator with many tools for IPv4,IPv6
Tool for identifying Network Service Dependencies